Wavelets and partial differential equations for image denoising

ELCVIA Electronic Letters on Computer Vision and Image Analysis

Domenico Vitulano¹  Vittoria Bruni¹  Benedetto Piccoli¹ 

关键词: Image restoration;    wavelets;    scale space analysis;   

DOI  :  

学科分类：计算机科学（综合）

来源: ELCVIA

【 摘 要 】

In this paper a wavelet based model for image de-noising is presented. Wavelet coefficients are modelled as waves that grow while dilating along scales. The model establishes a precise link between corresponding modulus maxima in the wavelet domain and then allows to predict wavelet coefficients at each scale from the first one. This property combined with the theoretical results about the characterization of singularities in the wavelet domain enables to discard noise. Significant structures of the image are well recovered while some annoying artifacts along image edges are reduced. Some experimental results show that the proposed approach outperforms the most recent and effective wavelet based denoising schemes. keywords:Image restoration, wavelets, scale space analysis

【 授权许可】

Unknown